Since the measurement is not done yet, I asked Jeff to give me the model of the TF from PUM to the test mass angle to angle.

Since I don't know enough about the model, I made the model generate the TF data, and used my wrapper for vectfit3 named happyVectfit to fit the model TF and invert it. This way when the real TF is measured I can use the same script without much modification.

You want to give happyVectfit a large order of fit, which initially produces many useless poles and zeros, but the script weeds out useless ones automatically, making things almost always hands-free. If you want you can give the script some criteria regarding what poles/zeros are useless.

~controls/keita.kawabe/fit/invertPUM2TSTmodel.m looks at the model, calls happyVectfit, inverts the fit, discards unstable poles and outputs plots (attached) as well as foton-compatible filter definitions.

In the attached plots, each DOF for each mass has two pages, the first one being the model TF and the fit, the second one being the filter generated and the residual that is just a pendular type TF. The difference between ITM and ETM is wire VS fiber.

According to Jeff the PIT resonance of the model is inconsistent with reality so we still need to wait for the real measurement.

Just to make sure, the newly generated filters are put in H1:SUS-ITMX_L2_DRIVEALIGN_P2P, Y2Y,  ETMX P2P and Y2Y as invP2P and invY2Y.